Apparatus for measuring and delivering liquids.



PATENTED APR. 24, 1906.

G. L.sPBNo ER APPARATUS POR MEASURING ,AND DELIVBRING LIQU-IDS.

APPLICATION FILED SEPT. 16. 1903.

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rrnn srafrn'ls .nur `rrcng APPARATUS FLOR MEASURENG AND DlELlt/IEHINGILJIQLHDS.-l

Specification of Letters atent. i

lPatented April 24, 1906.

Apploation'l'iled September 16. 1903. Serial No. 173.445.

To all whom,v it muy concern: i

Be it knownthat I', GUILFORD L. SPENCER, a citizen of the United States,residing at Washington, in the District of Columbia, have inventedcertain new and useful Improvements in Apparatus for Measuring andDelivering Liquids, 'of which the following is a specification. l

This apparatus is designed to automatically measure and deliver-adefinite but variable lquantity of a liquid.

rlhe apparatus essentially comprises an airtight measuring vessel havinl an inlet for the liquid, a check-valve in thls inlet to preventoutflow of the liquid through it, an inlet for the introduction orcompressed air, which is vemployed to force the liquid out of thevessel, and an outlet-pipe for the liquid having one end within andvertically adj ustablewith relation'tothe vessel. A scale and index areprovidedto indicate the position ofthe end of the'outlet-pipe within thevessel. A storage andsupply tanknis arranged above the Ineas-l uringvessel in positionto deliver the liquid thereto by gravity.l l

A convenient accessory to the apparatus is a four-Way cock havin aninlet and outlet -for the measured liqui an inlet and outlet Vfor the`compressed air, and an outletI -for venting the measuring vessel throughthe compressed-air pipe as it is being. illedl'rom y-the storage-tank.This cock has an apertured turn-plug, which in one position closes 4theliquid and air inlets and opens the vent- 'outlet and which'whenturned\4 one-quarter closesythe vent-outlet, admits the compressed airto the measuring vessel, and opens the 'liquid-outlet from lthe-vessel.

The invention will be readily understood by reference to theaccompanying drawings, in which-.-

Figure 1 is a side elevation of the apparatus with the measuring vesselin axial section. Fi '2 is a detail view of a clamp for the movab e endofthe outlet-pipe and a portion of a graduated'tube carrying thismovable end.

Fig. 3 is a vertical axial section through the four-way cock; and Figs.4, 5', and 6 are transclosed at its upper end by a removable cover versesections of the cock on the lines 1V 1V, V V, and VI VI of Fig. 3.

rl`he measuring vessel 1, which may'consist of enameled cast-iron, ishermetically 2. A liquid-sup ly pipe 3, having a checkvalve 4, extendsownwardly from a stora etank 5 and opens into the` upper' end of t e,shown in Figs. 3 to 6, the

the pipe 6, passage vessel. An air-pipe 6v extends froma/'compressed-air tank downwardly to the four-way cock 7, from which anair-pipe 8 extends to and` opens through the cover of the measuringvessel. A vertical guide-rod 9 is threaded at its lower end into thebottom ofthe vessel and extends upwardly through an opening in thecover. 'Upon this rod slides a graduated netal tube 10, which passesadjustably through a stufling-box 11 on the cover and is closed at itsupper end 12. `An index 13 is iixed upon the cover to mark the positionof the tube 10 by lreference Ato the graduations upon it. Theliquid-outlet pipe, here shown as a llexible rubber tube 14, is securedvat one end to the lower end ofthe graduated tube by is secured to ashort nipple 17, which extends through the side of the measurin vesselnear its 'upper end. From this nipp e a pipe 18 leads to the four-waycock. A corresponding liquid-delivery pipe 19 leads from this cock toany desired point. A vent-pipe 20 leads u wardly from they cock to apoint above t e highest level of theliquid in the storage-tank 5. Theupper end of this'pipe 20is here shown as extended over thestorage-tank.' l

Referring now to Figs. 3 to 6, it will be seen thatthe turn-plug 21 ofthe cock 7 has near one end a ri ht-angular passage'22. Midway itslength ie plug has a transverse tends from the transverse passage 23towardv the other end or' the plug, Where it opens into a passage 26,-communicating with the/ventpipe 20. Y u

lhen the turn-plug is in the position cock allows coinfrom the tank 7,through 23, and pipe 8, into the measuring vessel. lf this vessel hasbeen filled with liquid from the storage-tank or otherwise, thecompressed airn intrdduced into it closes the check-valve 4 and pressingon the surface of the liquid expels-it through the outlet-pipe 14,theliquid thus being dislaced r-onr the measuring vessel until itspressed air to pass evel has fallen to such a point that air may escapethrough the outlet-pipe. lt will thus be seen thatthe height of theinner end of this' outletipipe, as shown by the scale and IOO IIO

out through the pipe 19. turns the plug of the cock in the directionindex 18, determines and measures the amount of liquid delivered by thevessel. The liquid expelled from the vessel flows through the pipe 18,passage-22, and iinally The operator now indicated by the arrowsone-fourth of a revolution, thereby closing the air-inlet andliquid-outlet of the vessel, but putting the airpipe 8 intocommunication with the ventpipe '20. Then weight of the liquid. in thevstorage-tank 5 thereupon opens the checkvalve 4, thereby filling themeasuring vessel, while the air in it escapes through the ventpipe.Another quarter-revolution of the cock-plug in the reverse directionagain empties the measuring vessel, as already described. 1

It will be obvious that the structural details of the apparatus may beconsiderably varied within the scope of the invention as f claimed.

I claim- 1. An apparatusfor measuring and delivering liquids, comprisingan air-tight vessel with inlets for liquid and compressed air and anoutlet for liquid, a pipe connected to said outletand having avertically-adjustable free end below said outlet, and an index fixed onsaid vessel for indicating the position of said free end, asset forth.

2. An apparatus for measuring and delivering liquids, comprising anair-tight vessel with inlets for liquid and compressed air and an outletfor liquid, a check-valve controlling the liquid-inlet, a pipe connectedto said outlet and having a verticallyadjustable free end below saidoutlet, ,and an index fixed on said vessel for indicating the positionof said free end, as set forth.

3.l An apparatus for measuring and delivering liquids, comprising anair-tight vessel with inlets for liquid and compressed air and an outletfor liquid, a flexible pipe connected to said outlet and having avertically-adjustable free end below said outlet, and-an index fixed onsaid vessel for indicating the position of said free end, as set forth.

4. An ap aratus for measuring and deliv- -ering liqui s, comprising anair-tight vessel with inlets for liquid and compressed air and an outletfor liquid, a check-valve controlling the liquid-inlet, a flexible pipeconnected to said outlet and having av vertically-adjustable free endbelow said outlet, and an index fixed on said vessel for indicating theposition of said free end, asset forth.

' .5. An apparatus for measuring and delivering liquids, comprising anair-tight vessel with inlets for liquid and compressed air and an outletfor liquid, a pipe connected to`said outlet and having avertically-adjustable free end below said outlet, a graduated membersecured to said free end, and a separate airtight opening receiving saidgraduated member, asset forth.

6. An apparatus for measuring and delivering liquids, comprising anair-tight vessel withinlets for liquid and compressed air, aliquid-outlet pipe, said pipe having one end lvertically adjustablewithin said vessel, a

guide-rod fixed in the bottom of said vessel, and a graduated tubesecured to the adjustable end of said outlet-pipe, sliding on saidguide-rod and passing through the top of said vessel, as set forth.

7. An apparatus for measuring and delivering liquids, comprising' anair-tight vessel with an inlet for compressed air and a liquid outletpipe having one end vertically adjustable within said vessel, asupply-tank having a pipe containing a check-valve and leading to saidvessel, and a vent-pipe leading from said vessel to a point above theliquid-levelin said supply-tank', as set forth.

8. An apparatus formeasuring and delivering liquids, comprising anair-tight vessel with inlets for liquid and compressed air, aliquid-outlet pipe, said pipe having one end vertically adjustablewithin saidA vessel, 'a source of compressed air, a vent-pipe, and acock having passages which in one position admit compressed air to thevessel and in another position cut off the supply of compressed air andopen communication with the vent-pipe, as set forth.

9. An apparatus for measuring. and delivv with inlets for liquid andcompressed air, a

liquid-outlet pipe, said pipe having .one endloutlet pipe to saiddelivery-pipe, and in another position cut off the supply of compressedair, close the liquid-outlet pipe andy open communication with thevent-pipe, as set forth. Y

In testimony whereof I aflix my signature in presence of two witnesses.

. GUILFORD L. SPENCER. Witnesses:

EUGENE A. BYRNEs, C. A. NEALE.

yering liquids, comprising an air-tight vessel IOf) ITO

